Pinus thunbergii, commonly known as Japanese black pine, is a species of pine tree native to coastal areas of Japan and South Korea. It typically grows to heights of 15 to 30 meters and features long, slender needles that are dark green in color. The tree is well-adapted to sandy soils and is often used for coastal protection due to its ability to withstand salt spray and strong winds. This species is also valued for its aesthetic appeal and is commonly used in landscaping and bonsai. Pinus thunbergii produces large, woody cones that can be up to 10 centimeters long. Its durable wood is utilized in construction and furniture-making, making it an important resource in its native regions.